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介孔TiO/BDD复合电极在水处理中的协同效应。

Synergetic effect in water treatment with mesoporous TiO/BDD hybrid electrode.

作者信息

Suzuki Norihiro, Okazaki Akihiro, Kuriyama Haruo, Serizawa Izumi, Hirami Yuki, Hara Aiga, Hirano Yuiri, Nakabayashi Yukihiro, Roy Nitish, Terashima Chiaki, Nakata Kazuya, Katsumata Ken-Ichi, Kondo Takeshi, Yuasa Makoto, Fujishima Akira

机构信息

Photocatalysis International Research Center, Research Institute for Science and Technology, Tokyo University of Science 2641 Yamazaki Noda Chiba 278-8510 Japan

ORC Manufacturing Co., Ltd 4896 Tamagawa Chino Nagano 391-0011 Japan.

出版信息

RSC Adv. 2020 Jan 8;10(3):1793-1798. doi: 10.1039/c9ra10318j. eCollection 2020 Jan 7.

DOI:10.1039/c9ra10318j
PMID:35494675
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9047568/
Abstract

Boron-doped diamond (BDD) electrodes have a wide potential window and can produce ozone by water electrolysis at high voltage. Though ozone has strong oxidative power (standard oxidation potential: 2.07 V NHE), it cannot decompose certain types of recalcitrant organic matter completely. We developed an advanced oxidation process (AOP), in which hydroxy radicals with stronger oxidative power (standard oxidation potential: 2.85 V NHE) are formed using a combination of ozone, photocatalyst, and UV. In this study, we fabricated a mesoporous TiO/BDD hybrid electrode and examined its potential for AOPs. A synergetic effect between electrochemical water treatment and photocatalytic water treatment was observed with the hybrid electrode that did not occur with the BDD electrode.

摘要

硼掺杂金刚石（BDD）电极具有较宽的电位窗口，并且可以通过在高电压下进行水电解来产生臭氧。尽管臭氧具有很强的氧化能力（标准氧化电位：2.07 V 对标准氢电极），但它不能完全分解某些类型的难降解有机物。我们开发了一种高级氧化工艺（AOP），其中通过臭氧、光催化剂和紫外线的组合形成具有更强氧化能力（标准氧化电位：2.85 V 对标准氢电极）的羟基自由基。在本研究中，我们制备了一种介孔TiO/BDD复合电极，并研究了其在高级氧化工艺中的潜力。观察到复合电极在电化学水处理和光催化水处理之间具有协同效应，而BDD电极则没有这种协同效应。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4f10/9047568/e96f004cde2a/c9ra10318j-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4f10/9047568/10dea78bffa6/c9ra10318j-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4f10/9047568/4ab2a9c24842/c9ra10318j-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4f10/9047568/d14f46a388c5/c9ra10318j-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4f10/9047568/e96f004cde2a/c9ra10318j-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4f10/9047568/10dea78bffa6/c9ra10318j-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4f10/9047568/4ab2a9c24842/c9ra10318j-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4f10/9047568/d14f46a388c5/c9ra10318j-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4f10/9047568/e96f004cde2a/c9ra10318j-f4.jpg

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